21625960

素因数分解:

$2^3\times 5^1\times {\mathrm{577}}^1\times {\mathrm{937}}^1$

素因数の和:1525

約数の個数: 32

約数和(自身を含む): 48794760

約数和(自身を除く): 27168800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 577, 937, 1154, 1874, 2308, 2885, 3748, 4616, 4685, 5770, 7496, 9370, 11540, 18740, 23080, 37480, 540649, 1081298, 2162596, 2703245, 4325192, 5406490, 10812980, 21625960]

約数ペア:

[(1, 21625960), (2, 10812980), (4, 5406490), (5, 4325192), (8, 2703245), (10, 2162596), (20, 1081298), (40, 540649), (577, 37480), (937, 23080), (1154, 18740), (1874, 11540), (2308, 9370), (2885, 7496), (3748, 5770), (4616, 4685)]